Apparatus for heating cars by electricity



(No Model) B. M. HUNTER.

APPARATUS FOR HEATING CARS BY ELECTRICITY. No. 397,857. Patented Feb. 12, 1889.

INVENTOR.

WI NESSES:

N PETERS, Phnioiilhugnphur. Washinglan, v.0

' UNITED STATES PATENT OErrcE.

RUDOLPH M. HUNTER, OF PHILADELPHIA, PENNSYLVANIA.

APPARATUS FOR HEATING CARS BY ELECTRiGITY.

SPECIFICATION forming part of Letters Patent No. 397,857, dated February 12, 1889.

Original application filed January 12, 1887 Serial No. 224,150. Divided and application filed er mhe' 27, 1887, Serial No. 250,842. Again divided and this application filed November 21, 1888. Serial No. 291,479. (No model.)

To all whom it may concern:

Be it known that I, RUDOLPH )l. HUNTER, of the city and county of Philadelphia, and State of Pennsylvania, have invented an Improvement in Apparatus for Heating Cars by Electricity, (Case 73,) of which the following is a specification.

My invention has reference to electric railways; and itconsists in certain improvements, all of which are fully set forth in the following specification, and shown in the accompanying drawings, which form part thereof.

This application (Case '7 is a division of my application, Serial No. 250,8i2, filed September 27, 1887, which was in turn a division of my application filed January 12, 1887, Serial N 224,150.

My invention relates to electric railways, with particular reference to heating. The electricity may be derived from batteries carried by the car or from line-conductors, or both combined. The electric heaters or stoves are preferably in shunt or multiple relation with the motor, and may have suitable regulators to control their temperature. The batteries, if used, maybe secondary or other batteries, the particular construction being unimportant to my invention, broadly considered. Separate regulators may be employed for the motor and heaters or their circuits. If desired, the heaters may be in series connection with the motors.

Generally speaking, it is immaterial to my invention what the source of the electric power may be, as is also the specific construction of the heater and regulator and their location 011 the car.

In the drawings, Figure 1 is a sectional elevation of an electric-railway an d motor car embodying my invention. Fig. 2 is a crosssection of car, showing circuits, &c.; and Fig. 3 is a diagram showing the arrangement of circuits on the car.

A represents a conduit, of any suitable construction, and contains the two longitudinal conductors C C, which receive current from some stationary source.

P is the collector, which extends down into the conduit and makes a sliding or rolling contact with the conductors C, and may be hung from the car in any manner desired.

F are the axles, and F the wheels. of the car.

. E is the car-body, and I1 is the electric motor for driving the car, and may be made in any manner and connected as desired.

The upper ends of the conductors S S of the collector are the terminals of the motor-circuit H, which circuit is provided with the culrent-reverser H and resistance-changer H which may be regulated by hand or made automatic, as shown, having a helix, H, which actuaies the switch-contact core, said helix being in direct or shunt circuit. Any suitable form of regulator may be used.

Referring to Fig. 2, \Y represents an electric stove, which consists, essentially, of an arc lamp surrounded with a close sheet-iron casing, around which air-currents are caused to circulate through the annular passage-way to. There may be any number of these stoves coupled together in series or multiple arc and in a circuit, V, arranged as a shunt or derived circuit with reference to the motor. This circuit V is provided with a circuit-breaker,V, and a resistance-changer, r, to control the amount of heating effect. The stoves may be of any suitable construction, provided they be heated by electricity, and may have suit able dampers to control the air-draft through them. In place of the arc stoves I may use" resistance stoves, as indicated in the righthand part of Fig. 1. 7

Referring again to Fig. 2, X X are two secondary or other batteries of any number of cells each, and are placed under the car-seats or in other suitable location. One terminal of the batteries is connected by conductor (2 with one collector S, and the other terminal of said batteries connecting with the con-v ductors e 6, either of which may be connected by switch q with conductor or, communicating with the other by collector S. By this means, when secondary batteries are used, either battery desired is connected with the line-conductors C for charging, and the IV are also supplied (in this figure) from the batteries, being put in circuit with either battery X or X by the switch 7'. By simply throwing the switches r and q onto the same contact the secondary batteries may be both out out, or the line-current may be divided, part passing through the secondary battery and part over the lighting or heating circuit,

or both.

Referring now to Fig. 3, which indicates the general arrangement of the circuits on the car above referred to, a betterunderstanding of the construction will be had. It will be seen that the batteries X may be alternately coupled by the switch q with circuit 02, and thus be in multiple connection with the motor and collectors S S; but when no current is passing from the line-conductors the battery in circuit with the motor would be in series with it. The right-hand battery is in circuit with the lighting-circuit t by switch '1', and the left-hand battery X is shown as in circuit with the stoves IV by circuit 6 V n and switch q; or the switch V maybe thrown up and put the stoves in circuit with the lefthand battery by circuits e t e and switch 1*. The switch Y may be used to cut the stoves out of circuit, and the resistance-changer may be used to control the current flowing through them. hen the parts are coupled, as shown, it will be seen that the stoves are in multiple connection with the motor, and may receive current from the line-circuits or secondary batteries.

I do not limit myself to the details of construction, as they may be modified in various ways without departing from my invention.

I have described the general features of my invention, and have shown many things which are not claimed, for the purpose of making my invention more clear, and I wish it to be understood that any matters shown or described but not claimed are not dedicated to the public, but form subject-matter of the other pending applications above referred to.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In an electric railway, an electricallypropelled vehicle, an electric motor to propel said vehicle, an electric heater to heat said vehicle, a source of electric energy, and electric circuits including said motor and heater in multiple-arc connection a 2. In an electric railway, an electricallypropelled vehicle, an electric motor to propel said vehicle, an electric heater to heat said vehicle, a source of electric energy, electric circuits including said motor and heater in multiple-arc connection, and means to control the current passing through the heater independently of the motor.

3. In an electric railway, a line-working conductor, a traveling vehicle, an electric motor to propel said vehicle, an electrical connection between said motor and working-conductor, a shunt-circuitaround the motor on the vehicle, and an electric heater in said shunt-circuit.

i. In an electric railway, a line-working conductor, a traveling vehicle, an electric motor to propel said vehicle, an electrical connection between said motor and working-conductor, a shunt-circuit around the motor on the vehicle, an electric heater in said shuntcircuit, and means to regulate the current flowing through the shunt-circuit.

5. In an electric railway, a line-working conductor, a traveling vehicle, an electric motor to propel said vehicle, an electrical connection between said motor and working-conductor, a shunt-circuit around the motor on the vehicle, an electric heater in said shuntcircuit, and means to cut the heater out of circuit.

0. In an electric railway, a line-working conductor, a traveling vehicle, an electric motor to propel said vehicle, an electric heater carried by the vehicle, and an electrical connection carried by the vehicle and making contact with the working-conductor to supply electricity to both the heater and motor.

7. The combination of a source of electric energy, a circuit therefrom, and an electric heater included in said circuit and consisting of an arc lamp, a close heater-casing surrounding the are, and an outer draft-casing to guide air around said heater-casing.

8. The combination of a source of electric e:1ergy,a circuit therefrom, and an electric heater included in said circuit and consisting of an arc lamp, a close heater-casing surrounding the are, an outer draft-casing to guide air around said heater-casing, a circuit-breaker, and a regulator to control the current flow ing through the heater.

9. In an electric railway, the combination of an electrically-propelled vehicle, two sec ondary batteries on the vehicle, a 1notorcircuit, a local heater-circuit, including a heater, and switches for coupling the motor-circuit with one battery and heater-circuit with the other battery.

10. The combination of a car, a source of electric energy, aheater-circuit, and an.electric heater consisting of an arc lamp surrounded by a draft-casing.

In testimony of which inveniionI hereunto set my hand.

RUDOLPH M. HUNTER,

\Vitnesses:

ERNEST HOWARD HUNTER, E. M. BRECKINREED.

TOO

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